Boiler construction



Sept. 6, 1932. w. E. STARK BOILER COSTRUGTION Filed Ju1'y." 24. leso melma f. Mrv

Patented Sept. 6, 1932 Si l le.

Frics r W'LLEJE. STAB-l, QF EAST CLEJ'ELAN), OHIO, ASSIGNGR THE BRYANT HEATER Sa j IJIANUFATRNG CMLANY, GF (BCTMVELAND',y OHIO, A CORPORATION/0F; OHIOV BOILER CONSTRUGTION Application filed. July 24, 1930. Serial No. 470,275. i

.This invention relates to boiler construe` tions, and more particularly to the construction of water heaters adapted to utilize ther heat of combustion of gaseous fuels for heat-- systems for buildings and the like.

lt is an object of theinvention to provide an improved flue constructionv for conducting` the gases of combustion from the interior of.' the boiler tothe chimney. v Y

@ther objects andfeatures of novelty will be apparent as the following description pro-- ceeds, reference being had to the accompany-- ingdraw'ing, in which g rig. l is vertical section through a boiler: according to the preferred embodiment of the present invention.

- Fig.V 2 is a transverse section talren alongI the line 2 2 of 1.

Fig. 3 is a similar vsection taken along the line 3 3 of 1.

Fig. 4 is an elevation of the upper part of' the front wall of the boiler shown in Fig. 1 and 1 i 5 is a detailed perspective view of the baffle plate employed in the novel flue con-- struction. 1

Referring more particularly to the drawing the boiler comprises a plurality of water sections 10, preferably of cast-iron. Four of these sections have been illustrated in Figs. 2 and 8, but it is to be understood that a greater or less numberinay b employed as desired'. The sections are connected by an upper inanifold 11 and lower manifolds 12 and 18. upper corners of the sections are provided with flanges 14 and'l, and vertical flanges 16 and 17 are provided at the bottom of the sections above the respective manifolds 12 and 13. Vhen the sections 10 are arranged side by side with the flanges 14, 15, 16 and 17 in respectively abutting' relationship, the sections may be held together by rods 18 so as to form a unit. rlhe boiler unit thus described is enclosed within a casing comprising a topplat-e 19, in-

ner and outer iront walls 2G and 21, a rear wall 22T and side walls 53 and 54. Each of these Walla with the exception of the outer frontwall 20, are lined with insulating material indicated at 23. The sections 10 are rllhe lprovide sloping side portions. Y

supported within the casing by a suitable base of which the front plate 24 and the back plate 25 are shown. j v

The outer front wall20 is provided with :a lower door or the like 26 'which provides access to a gas manifoldl27 mountedin the ,space between the inner and outer front Walls 20 and 21, preferably between the front plate l with an aperture 3,3 which is adapted to be connected to the chimney for the disposition of spent gases of combustion. The rear wall 22 is provided with an aperture 34, and a hood .l depends below the lower edge of the aperture 34. The inner front wall 31 is provided with a similar aperture 36, and asimilar aperture 37 is provided inthe outer front wall 20.

The apertures 36and 37 are connected by an upper curved plate 38 and a lowerv curved plate 39 to provide a passage 4which is separate from the space between the'inner and outer walls 20 and 21.y The outer aperture' is preferably. screened 'byforaminous material 46'. I f The flow ofjair and gases within'thecasing isy controlled largely by the` baillelplate40 shown in Fig. 5. Flanges 41 and V42 are bent down at each end ofthe plate 40, and the central portion of each flange is cut away as at 432preferably along a circular arc which extends through the greater part of the depth of the ilange 41 at a point intermediate lits ends. The plate40 is so formed, preferably by folding longitudinally as at 44,- Aas to The plate 40 is positionedin the space between the sections 10 and the top plate 19, with the flanges 41 resting on the end sections being held against lateral movement by retaining means, such as proyections 45 on the Y manifold 11u. Thus the baille forms a passage having its ends substantially in alignment with the air openings 34 and 36.

In operation, after the burners 28 have been i ignited, the gases of combustion will flow upfwardly through the spaces between the boiler sections and'pass between' the flanges 14 and l and on each side of the manifold. 11. The

. plate 40 will4 deflect the gases of combustion laterally and Vthe draft `from the chimney through the opening 33 will draw the saine around the ends yof the plate and up to the f reason aback draft iscreated, thesame will not interfere with the burners 23, but instead will 'be-directed laterally by the plate 40 to the openings 34, 36 and 37.

While one embodiment'of the invention has i` been illustrate'dand described in such detail as to enable anyone slrille'din the art to practice the invention, nevertheless, it is to be understood that the invention is not to be limited to any of thedetails disclosed other than as necessitated by the development of the .prior art; but instead the invention embraces such embodiments ofthe broad idea as fall Withinlthe scope of the appended claims ,vit being obvious that various 'changes may be resorted to with respect to the disclosed embodiment withoutdeparting from the spirit of the invention. p

`Having thus described my invention I claim: i

l. ln a boiler having vertical water sec-' tions,- the combination of a cas-ing enclosing the sections, said casing having an opening in its upper wall adapted to communicate with a" chimney, the opposing vertical walls of said casing which are normal to the plane of the sections having relief openings and means in said casing for deflecting back drafts from said first mentioned opening away from the interior of the `boiler and to-` ward said relief openings, or for deflecting products of combiistion from the interior of the boiler laterally toward said relief openings.l Y V V2. In a boiler havingvertical water section-s,the combination of a casing enclosing the sections, saidcasing having anv opening in itsjupper wall adaptedto communicate with a chimney, the opposing vertical walls of said casing which are normal to the planeof the sections having relief openings, and means in said casing for deflecting` Vback drafts' from said first mentioned opening away from the interior of the boiler and toward said relief openings.

3. In a boiler having vertical water sec- Y tions, the combination of a casing enclosing the sections, said casing having an opening in its upper Wall adapted to communicate with a chimney, the opposmg vertical walls of said casing which are normal to the plane of theA v sections having relief openings, and a baifle in said casingfor defiectinggbacl;draftspfrom saidiirst mentioned opening away from the interior of the boiler and toward said relief openings.

v 4. In a boiler'havingverti'cal water se'c'i tions,l the combination of racas'ing e'r'iclos'ing` the sections, said casing having an opening in its upper wall adapted togcommunicate with a chimney, the opposing vertical Walls of said casing which are normal to the planepof the sectionsk having relief! openings, .and

means in said Casing resting onsaid'sections? for deflecting back drafts from said Y first mentioned openinga'way'fronrthe interior of! the boiler and toward'saidhreliefopenings. Y

5. In ak boilerV havingl` vertical water sections, the combination' of a'f casing 'enclosing' the sections, said casing having. an opening inv its upper wall adaptedto'commun'icate with'- interior of the boiler and towardsaid relief;

openings, and retaining means associated with said sectionsl and cooperating withl said baiie. Y Y f ,Y

6. In'a boiler having water sections, the

combination of a casing enclosing the 'seo-l f tions, said casing having an opening adapted to communicate with a' chimney, different walls of said casing havingair openings, andvv a baiiie in saidY casing forming a passage having its lends in substantial alignment' with said air openings.

lln testimony whereof, I hereunto afiir my signature.

WILLET E. STARK. f 

